Drum head ring



FIG. 1 is a top plan view of a drum head ring showing my new design;

FIG. 2 is a side elevational view, the undisclosed opposite side being substantially a mirror image;

FIG. 3 is a bottom plan view thereof; and

FIG. 4 is a perspective view thereof.

The broken line showing of the drum is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a drum head ring, as shown and described. 